Container retaining system for a filler

ABSTRACT

A container retaining system comprising an upstand portion, a container retaining assembly, a suspension assembly. The container retaining assembly is coupled to the upstand portion and has an upper plate with a rear edge and a lower plate with an outer portion. The lower plate is positioned below the upper plate and rotatably coupled therewith. The outer portion extends outwardly to be capable of interfacing with a filler valve and/or container. The suspension assembly extends between the upstand portion and the upper plate, and includes a biasing member configured to bias the lower plate toward the upper plate. A downward force on the lower plate sufficient to overcome the biasing member directs the lower plate to rotate about the upper plate proximate a rear edge of the upper plate. A stopper associated with the lower plate defines the end of rotation of the lower plate.

CROSS-REFERENCE TO RELATED APPLICATION

NA

BACKGROUND OF THE DISCLOSURE

1. Field of the Disclosure

The invention relates in general to container filling equipment, andmore particularly, to a container retaining system for retaining acontainer within a filler. It will be understood that the containerretaining system is configured to retain a container during operation ofthe fill valve to fill the container (if such support is necessary),while allowing the fill valve to remain closed in the event that nocontainer is present, and facilitating opening of the fill valve asdesired for cleaning when no container is present.

2. Background Art

The filling of containers with fluid on filling equipment is well knownin the art. Generally, fillers comprise rotary or linear fillers whichinclude a number of container retaining assemblies which cooperate andinterface with a plurality of filler valves. In many cases filler valvesare located on a rotating spindle with a bowl containing the fluid to befilled. The containers are introduced into container retainingassemblies. Subsequently, the filler valves are introduced to thecontainer within the container retaining assemblies. The filler valvesare opened and the containers are filled.

Due to various cost and environmental concerns, containers for holdingfluid have been redesigned to minimize the use of materials, typically,a polymer such as PET or the like. For example, the walls of thecontainer have become increasingly thinner, and, consequently, moreflexible. In addition, to accommodate newer smaller caps, the neck andspout of these containers has become shorter.

As a result of these changes, often times the container lacks thestrength necessary to open a mechanical fill valve. Therefore, it hasbecome necessary to support the container to a greater extent, or toalter the fill valve construction. For example, electric valves havebeen utilized in place of mechanical valves to facilitate the filling ofthese less rigid containers. Problematically, electric valves addimmense complexity to the filler equipment and greatly reduce therobustness of the filler. In addition, the electric valves are not wellsuited for the filler environment, especially during cleaning steps. Inparticular, the pressure of the cleaning fluids and the very nature ofthe cleaning fluids often is very destructive to the valves.

While it is desirable to utilize mechanical valves, it has beenheretofore difficult to utilize mechanical valves with such containers.In particular, where additional support is provided to the container(i.e., supporting the container at the neck), the additional support caninterfere with the operation of the fill valve. This is especially truein situations where the filler valve is directed into a dispensingposition, but a container has inadvertently not been properly positionedwithin the container retaining assembly. Undesirably, the result is thatthe fill valve opens and fluid is spilled onto the equipment until thefill valve is again closed. In many of these types of fillers, it isdesirable to have a cleaning operation wherein the mechanical valves areopened by the container retaining assemblies when containers are notpresent to allow the release of cleaning fluid to all of the areaswithin the valve.

SUMMARY OF THE DISCLOSURE

The disclosure is directed to a container retaining system for a fillercomprising an upstand portion, a container retaining assembly and asuspension assembly. The upstand portion extends in a generally upwarddirection from a surface upon which containers are positioned forfilling. The container retaining assembly is coupled to the upstandportion. The container retaining assembly includes an upper plate and alower plate. The upper plate has an upper surface, a lower surface and arear edge. The lower plate has an upper surface, a lower surface and anouter portion. The lower plate is positioned below the upper plate androtatably coupled therewith. The outer portion extends outwardlysufficiently so as to be capable of interfacing with a filler valve of afiller. The suspension assembly extends between the upstand portion theupper plate. The suspension assembly includes a biasing memberconfigured to bias the lower plate toward the upper plate. A downwardforce on the lower plate sufficient to overcome the biasing memberdirects the lower plate to rotate about the upper plate proximate therear edge of the upper plate. A stopper is associated with the lowerplate to define the end of rotation of the lower plate relative to theupper plate.

In a preferred embodiment, the upstand portion further includes aproximal end and a distal end, with the suspension assembly coupled tothe distal end thereof.

In another preferred embodiment, the upstand portion includes a lowermount and an upper mount. The lower mount is positionable relative tothe upper mount in at least a plurality of orientations so as to alteran effective height of the upstand portion.

In another embodiment, the system further includes an adjustmentassembly configured to control the slidable movement of the lower mountrelative to the upper mount. Such adjustment alters the effective heightof the upstand portion.

In another preferred embodiment, the adjustment assembly comprises anupper mount positioned on the upper plate and a lower mount coupled tothe lower mount of the upstand portion. A threaded fastener extendsbetween the upper mount and the lower mount of the adjustment assembly.The threaded fastener is configured to rotate relative to each of theupper mount and the lower mount, while being permitted to translaterelative to one of the upper mount and the lower mount. As such, therotation of the threaded fastener either directs the upper and lowermounts further away from each other or closer together.

In another preferred embodiment, the lower plate includes an innerportion coupled to the outer portion. The inner portion and the outerportion are obliquely positioned relative to each other, with the outerportion extending upwardly from the inner portion.

In another preferred embodiment, the stopper comprises a post extendingfrom one of the lower plate and the upper plate and extending through anopening in the other of the lower plate and the upper plate. A fasteneris positioned on the post opposite the one of the lower plate and theupper plate having the opening. The fastener has a size larger than thecorresponding opening on the upper plate, so as to preclude passagethrough the opening.

In yet another preferred embodiment, the post extends from the lowerplate, and extends through the opening on the upper plate.

In another preferred embodiment, the suspension assembly comprises atleast one strut assembly. The at least one strut assembly includes astrut tower coupled at a first end to the upstand portion and extendingthrough a strut opening disposed on the lower plate so as to be coupledat a second end to the upper plate. The biasing member comprises aspring extending around the strut tower. The biasing member exerts abiasing force between the upstand portion and the lower plate. As aresult, the biasing member directs the lower plate away from the upstandportion and toward the upper plate.

In a preferred embodiment, the at least one strut assembly comprises afirst strut assembly and a second strut assembly, the second strutassembly being spaced apart from the first strut assembly.

In another preferred embodiment, the lower plate includes a containergrasping surface (providing a locating) positioned on the outer portionthereof.

In yet another preferred embodiment, the force required on the outerportion of the lower plate to overcome the biasing force is less thanthe force required to open a filler valve of a filler with which thecontainer retaining system is utilized.

In another preferred embodiment, the force required to open a fillervalve is less than the force exterted by the biasing force incombination with a strength of a container associated with the containerretaining system. Without the container, the force required to open afiller valve is greater than the biasing force alone.

In another preferred embodiment, the upper plate has a lower surfacewhich is substantially planar. The portion of the upper surface of thelower plate contacting the lower surface of the upper plate is alsosubstantially planar. The lower surface of the upper plate can thereforebe positioned in abutment with the upper surface of the lower plate,with the biasing member biasing the two into contact.

BRIEF DESCRIPTION OF THE DRAWINGS

The disclosure will now be described with reference to the drawingswherein:

FIG. 1 of the drawings is a perspective view of a container retainingsystem of the present disclosure, for use in association with a fillerwhich is configured to fill containers with a flowable material, such asa liquid, syrup or the like;

FIG. 2 of the drawings is a side elevational view of the containerretaining system of the present disclosure;

FIG. 3 of the drawings is a front elevational view of the containerretaining system of the present disclosure;

FIG. 4 of the drawings is a perspective view of a portion of thecontainer retaining assembly of the present disclosure, showing, inparticular, the upstand portion and the suspension assembly thereof;

FIG. 5 of the drawings is a perspective view of the lower plate of thecontainer retaining assembly of the present disclosure;

FIG. 6 of the drawings is a perspective view of the upper plate of thecontainer retaining assembly of the present disclosure;

FIG. 7 of the drawings is a perspective view of an exemplary containerwith which the container retaining system is utilized, which containeris to be indicative of an example of a container, and not to belimiting;

FIG. 8 of the drawings is a perspective view of another embodiment ofthe container retaining system of the present disclosure, showing anembodiment that has a single member for the upstand portion therebyremoving the adjustability in the height of the upstand portion; and

FIG. 9 of the drawings is a perspective view of another embodiment ofthe container retaining system of the present disclosure, showing anembodiment that has an upstand portion wherein the lower mount and theupper mount can be adjusted relative to each other in a plurality ofdiscrete relative positions.

DETAILED DESCRIPTION OF THE DISCLOSURE

While this invention is susceptible of embodiment in many differentforms, there is shown in the drawings and described herein in detail aspecific embodiment with the understanding that the present disclosureis to be considered as an exemplification and is not intended to belimited to the embodiment illustrated.

It will be understood that like or analogous elements and/or components,referred to herein, may be identified throughout the drawings by likereference characters. In addition, it will be understood that thedrawings are merely schematic representations of the invention, and someof the components may have been distorted from actual scale for purposesof pictorial clarity.

Referring now to the drawings and in particular to FIG. 1, the containerretaining system for a filler is shown generally at 10. The containerretaining assembly is configured for use on a filler, such as a rotaryfiller or the like, that is designed to fill generally rigid containers.It will be understood that such a filler may include dozens of valvesand correspondingly dozens of such retaining assemblies (i.e., aretaining assembly for each one of the valves on the filler). Suchfillers are known to those of skill in the art. The fill valves arelikewise known in the art, and include such fill valves as that which isshown in U.S. Pat. No. 5,083,593 issued to Fogg, the entirespecification of which is hereby incorporated by reference in itsentirety. Of course, other fill valves are likewise contemplated foruse.

Generally, a typical container is retained and grasped by the containerretaining assembly as shown in FIG. 7 generally at 200. Such a containerincludes base 201 and spout 202 with opening 204. The spout typicallyincludes a flange 206 creating a space therebelow for receipt of thecontainer grasping surface 63 (FIG. 5), as will be set forth below.Generally, these containers are formed from a polymer through a moldingprocess (often blow molding, or the like). Often these containerscomprise a PET material, or an HDPE material, although other materialsare utilized, including but not limited to other polymers or glass orcomposites.

Referring again to FIG. 1, the container retaining system 10 is shown asincluding base 12, upstand portion 14, container retaining assembly 16,adjustment assembly 18 and suspension assembly 19. The base 12 includestop surface 20, bottom surface 22, slot 24 and locking assembly 26. Thetop surface includes rear ledge 25. The base 12 is coupled to the filler(often to the same chassis as other bases), through the locking assembly26. In particular, the locking assembly includes fastener 28 and clip29. The fastener extends through the clip 29, through the slot 24 andinto the chassis (not shown). Locating pins 27 cooperate with openingson the chassis (not shown) so as to properly locate the base relative tothe chassis, and preclude undesired relative movement therebetween.

The upstand portion 14 is shown in FIGS. 2 through 4 as comprising lowermount 30, upper mount 32 and locking assembly 34. The upstand portion 14is shown as comprising two relatively movable segments so as toeffectively change the distance between the base and the containerretaining assembly, thereby defining an effective height. It will beunderstood that the upper mount 32 and the lower mount 30 could bereplaced with a single component, wherein the single upstand portion 14is coupled to both the base at one end and the suspension assembly atthe other end. One such embodiment is shown in FIG. 8. Such anembodiment has limited adjustability with respect to differently sizedcontainers. In still other embodiments, the two components may bemovable into a plurality of discrete positions, such as the embodimentof FIG. 9.

Referring again to FIGS. 2 through 4, the lower mount 30 includesproximal end 40, distal end 41, inner surface 42 and outer surface 43.The proximal end 40 is coupled to the base above the rear ledge 25 ofthe top surface 20. A notch is presented at the proximal end 40 so as toallow slidable movement of the clip 29 generally perpendicularly to thelower mount. The inner surface includes a measuring indicator portion aswell as an opening to receive the fastener 35 of the locking assembly34, as will be described below. While a number of differentconfigurations are contemplated, the lower mount is substantiallyperpendicular to the base and the inner surface thereof includes arecessed portion configured to receive the upper mount 32, and toprovide a guide therefor. Other configurations are likewisecontemplated.

The upper mount 32 includes proximal end 44, distal end 45, innersurface 46 and outer surface 47. The distal end 45 generally defines thedistal end of the upstand portion. A slot/cam surface 48 extends throughthe upper mount with an opening toward the proximal end 44 thereof. Inthe embodiment shown, the slot/cam extends substantially the entirety ofthe distance from the proximal end and the distal end. The upper mountis configured so that the outer surface of the upper mount 32 slidablymoves over the outer surface 43 of the lower mount 30. As with the lowermount, the upper mount likewise comprises a generally rectangular cubicoverall configuration (and with the slot, a configuration much like aninverted “U” shape).

The locking assembly 34 includes follower 33 and fastener 35. Thelocking assembly is configured to lock the lower mount 30 and the uppermount 32 in operable locked engagement. The follower engages with theslot while the fastener extends therethrough and into the opening of theinner surface 42 of the lower mount 30. Tightening of the fastenerprecludes relative movement of the two mounts.

Referring now to FIGS. 1, 5 and 6, the container retaining assembly 16includes lower plate 50 and upper plate 52. As will be explained, thetwo plates are positioned so that the upper plate overlies the lowerplate in relative abutment, with the two plates being generallyperpendicular (or oblique) to the upstand portion 14. As will beexplained, the upper plate is fixedly coupled to the upper mount 32 andthe lower mount 30 (through the adjustment assembly 18 and thesuspension assembly 19) and generally precluded from relative movementtherebetween.

With particular reference to FIG. 5, the lower plate 50 comprises uppersurface 53 and lower surface 54 extending from an outer portion 55 to aninner portion 56. The outer portion 55 is angled obliquely relative tothe inner portion 56. In the embodiment shown, the inner portion 56 is,in a resting position, substantially perpendicular to the upstandportion 14 and parallel with the base 12. The outer portion is angledupwardly as extending away from the inner portion. As will be explainedbelow, such an angled configuration minimizes the wear of the lowerplate and the filler valve upon contact therebetween.

The outer portion 55 includes, at its distal end, a container graspingsurface 63. In the embodiment shown, the container grasping surface 63generally has a shape that is mating to the portion of the spout belowthe flange explained above. Of course, a number of differentconfigurations are contemplated, including embodiments where interfaceof the lower plate and the container is not required (i.e., where sturdypolymer containers, or, glass containers are utilized). The lower plateincludes a centrally located stopper 57 on the inner portion 56 thereof.The stopper 57 comprises a post 58 (a portion of which is threaded) thatextends upwardly from the lower plate, through the upper plate, andincludes a fastener 59 threaded to a distal end of the post (other meansother than threading are contemplated for positioning the fastener 59 atthe end of the post, or another larger member that is larger than theopening in the upper plate through which the post extends).

On either side of the stopper and positioned between the stopper and therear edge 65 of the inner portion, a first biasing member opening 60 anda second biasing member opening 61 is disposed. Generally, theseopenings are equidistantly spaced from the rear edge 65 of the innerportion and generally have the stopper positioned equidistantlytherefrom so as to be symmetrical about a longitudinal axis of the lowerplate extending generally midway between the sides thereof.

An adjustment opening is positioned between the biasing member openings60, 61 and the rear edge 65, and is configured to allow the threadedfastener 84 to extend therethrough without impingement. In theembodiment shown, the adjustment opening is positioned generally alongthe longitudinal axis of the lower plate, as described above.

With more particular reference to FIG. 6, the upper plate includes uppersurface 70 and lower surface 71, and defines rear edge 72. First biasingmember opening 73 and second biasing member opening 74 extend throughthe upper plate and match the location of the first and second biasingmember openings 60, 61 of the lower plate. Additionally, an adjustmentassembly opening is provided which corresponds to the adjustment opening62 of the lower plate.

As is shown in FIG. 1, the two plates are generally positioned in astacked orientation with the rear edges generally matching (with therear edge of the lower plate extending slightly beyond the rear edge ofthe upper plate), although such a configuration is not necessarilyrequired. As will be understood, the upper plate is shorter than thelower plate, such that at least the outer portion of the lower plateextends beyond the upper plate. In the embodiment shown in FIG. 1, theinner portion of the lower plate 50 and the upper plate both includesurfaces that are generally planar and generally which engage alongvirtually the entirety of the lower surface of the upper plate, althoughvariations and different surface topographies are contemplated.

The adjustment assembly 18 is shown in FIGS. 1 and 2 as comprising uppermount 80, lower mount 82, threaded fastener 84 and adjustment nut 86.The adjustment assembly controls the vertical displacement and verticalorientation of the container retaining assembly 16 relative to the lowermount 30 of the upstand portion 14. That is, the upper mount 80 includesupper bushing 83. The threaded fastener includes first end 85 and secondend 87. The threaded fastener is rotatably coupled at first end 85 tothe upper mount and upper bushing 83. That is, the fastener is permittedto rotate relative to the upper plate, but the upper plate is configuredto be coupled to the fastener so as to preclude slidable translationtherebetween. The threaded fastener is threadedly engaged with the lowermount 82 which is spaced apart from the second end thereof. Theadjustment nut 86 is positioned at the first end of the fastener andfacilitates the rotative movement of the threaded fastener in either aclockwise or counterclockwise direction. It will be understood that asthe threaded fastener is rotated in a first direction (by way of theadjustment nut 86), the threaded fastener is permitted to spin freelyrelative to the upper plate, but translates in a first directionrelative to the lower mount. When rotated in a second direction, thetranslation is in a second direction relative to the lower mount 82. Assuch, by rotating the threaded fastener in a desired direction, theeffective length of the upstand portion 14 (that is, the distancebetween the container retaining assembly 16 and the base 12 can be setas desired).

The suspension assembly 19 is shown in FIGS. 3 and 4 as comprising firststrut assembly 90 a and second strut assembly 90 b. It will beunderstood that while the first and second strut assemblies may bedifferently configured, in the embodiment shown, the first and secondstrut assemblies are generally identical to each other in configurationand operation. It is also contemplated that a single strut may beutilized in place of the two struts (it is also contemplated that agreater number of struts may be utilized). It is further contemplatedthat another biasing member may be utilized to maintain the lower platedirected at the upper plate and so as to provide resistance to rotation(also known as a deflection) of the lower plate relative to the upperplate.

More specifically, the first strut assembly 90 a comprises first struttower 91 a, first upper cap 93 a and first biasing member 94 a. Thestrut tower is coupled to the distal end of the upper mount 32 andextends generally vertically through the first biasing member opening 60of the lower plate 50 and through the first biasing member opening 73 ofthe upper plate 52. At the lower end, the strut tower may be threadedand may extend into a correspondingly threaded opening on the uppermount. A lower nut 99 a may be provided which locks the strut towerrelative to the upper mount. The first upper cap 93 a locks the struttower to the upper plate 52. As such, the first strut tower (incombination with the second strut tower) fixes the upper mount 32 to theupper plate 52.

The first biasing member 94 a comprises a spring having a first end 97 aand a second end 98 a. The first end 97 a is proximate the lower nut 99a with the second end seating against the lower surface 54 of the lowerplate 50 thereby pushing the lower plate against the upper plate. Byaltering the effective length of the first strut tower 91 a, the lengthof the spring can be varied (or, stated another way, the resting springforce can be varied).

The second strut assembly 90 b is generally identical to the first strutassembly 90 a. The second strut assembly 90 b is coupled to the distalend of the upper mount 32 on an opposite side from the first strutassembly 90 a. The strut assembly generally extends vertically throughthe second biasing member opening 61 of the lower plate 50 and throughthe second biasing member opening 74 of the upper plate 52. At the lowerend, the strut tower may be threaded and may extend into acorrespondingly threaded opening on the upper mount. A lower nut 99 bmay be provided which locks the strut tower relative to the upper mount.The second upper cap 93 b locks the strut tower to the upper plate 52.As such, the second strut tower likewise fixes the upper mount 32 to theupper plate 52.

As with the first biasing member 94 a, the second biasing member 94 bcomprises a spring having a first end 97 b and a second end 98 b. Thefirst end 97 b is proximate the lower nut 99 b with the second endseating against the lower surface 54 of the lower plate 50 therebypushing the lower plate against the upper plate.

The operation of the container retaining system will be described withrespect to a generally configured container, such as the container 200of FIG. 7, (and not limited thereto) as well as with a typical fillervalve (again, to which the container retaining system is not limited).Additionally, generally, the embodiment of FIGS. 1 through 6 will bedescribed. Initially, the container is positioned on the chassis (or thebase 12) and directed into position. In the embodiment shown in FIG. 7,the spout 202 is grasped below the flange 206 so that the containergrasping surface 63 interfaces therewith and retains the same. One suchconfiguration is shown in the embodiment of FIG. 8.

Referring again to the embodiment of FIGS. 1 through 6, once properlypositioned, it will be understood that in the cycle, eventually thefiller will drop down (or the chassis including the container retainingsystem will rise up) and the two will contact each other.Problematically, many of the current containers are generally made withincreasingly less polymer, and, thus, they are weaker. In manyinstances, they lack the strength to defeat the spring on the filler andopen the filler valve.

With the present container retaining system, when the filler hits thecontainer, the container and the container retaining assembly actagainst the filler spring to open the valve. In particular, the force istransmitted through the lower plate 50 which is precluded from rotativemovement relative to the upper plate by the first and second springs 94a, 94 b. The combined resistance of the springs and the containerrigidity is sufficient to overcome the spring of the valve and allow thevalve to open. Once open, the valve fills the container to the desiredlevel and then is closed and removed.

As the filler is filling containers, it is often the case thatsequentially, a filler station (having a head and a correspondingcontainer retaining assembly) may not receive a container. When acontainer is not presented at the time that a fill step is expected (or,a container is expected for filling), it is desirable not to have thefiller valve open, but to allow the filler valve to move into positionbut not open, then move away (thereby not opening, but not causing acessation of the equipment). That is, the cycle of the filler machinecontinues without either stopping or spilling fluid even where acontainer is not present.

In the instance where there is not a container, the filler valvenevertheless comes into position expecting a container. Instead, thefiller valve hits the lower plate 50 at the outer portion 55 thereof. Asthe springs 94 a, 94 b are not of sufficient strength to overcome thespring keeping the fill valve closed, the continued movement of the fillvalve overcomes the springs 94 a, 94 b and the lower plate 50 rotatesrelative to the upper plate sending the outer portion in a downwarddirection. As the valve reaches its lowest point, the lower plate stopsrotating, and the valve remains closed. The valve (continues as if itwas opened) moves away from the container retaining system 10 after apredetermined time (which would have substantially corresponded to thefilling time) and the cycle repeats. Throughout the cycle, no adjustmentwas required to the container retaining assembly or the fill valve topreclude the dispensing of fluid from the fill valve due to no containerbeing present. By angling the outer portion 55 of the lower platerelative to the inner portion 56, wear caused by the impact of thefiller valve on the outer portion 55 can be minimized.

When it is necessary to clean the filler valves, typically, either thevalves will travel through a longer stroke, or the container retainingsystem will be directed closer to the valve. In either case, whencleaning the filler valves, the filler valve is again directed intocontact with the outer portion 55 of the lower plate. Again, in the samemanner as explained above with respect to the situation wherein nocontainer is present, the springs 94 a, 94 b are of insufficientstrength to overcome the biasing force keeping the fill valve closed. Assuch, the valve remains closed. However, continued downward movement ofthe fill valve relative to the container retaining system (which isaccomplished by downward movement of the fill valve, or upward movementof the container retaining system, or movement of both), eventuallydirects the stopper to preclude further rotative movement of the lowerplate 50. That is, the fastener 59 of the stopper 57 hits the upperplate 52. As the fastener 59 is larger than the opening of the upperplate further movement of the two plates relative to each other isprecluded. At such time, the lower plate 50 becomes essentially fixed,and continued downward force by the fill valve will open the fill valve.

Thus, the container retaining system allows for the continued operationof the filler whether or not a container is presented in a containerretaining system that has a filler valve in a dispensing configuration,without dispensing any fluid through the fill valve. At the same time,the container retaining system allows for the opening of the fill valveduring cleaning operations by limiting the movement of the lower platerelative to the upper plate and the base 12 to eventually stop movingand to provide the force necessary to open the fill valve.

It will be understood that the embodiment of FIG. 1 is likewiseconfigured to adjust based upon the height of the container that is tobe filled. In particular, the distance between the base 12 and thecontainer retaining assembly can be changed. For example, to increasethe distance, the user first releases the locking assembly 34 whichselectively permits relative movement of the lower mount 30 relative tothe upper mount 32. Once released, the user can rotate the threadedfastener 84 of the adjustment assembly in either a first direction or asecond direction. In a first direction, the rotation of the threadedfastener translates the threaded fastener relative to the lower mount,slidably moving the lower mount 30 in a downward direction along theupper mount 32 toward the base 12. In a second direction, the rotationof the threaded fastener translates the threaded fastener relative tothe lower mount, slidably moving the lower mount 30 in an upwarddirection along the upper mount 32 away from the base 12.

In either case, once a desired height is reached, the user can againreengage the locking assembly to preclude further movement. It will beunderstood that the lower mount may have a fastener so as to impart aforce upon the threaded fastener to require a rotative force toovercome. In such a manner, inadvertent rotation of the threadedfastener is precluded. As such, the locking assembly could be omitted,or, where improperly tightened, the upper mount and the lower mountremain in position and generally do not move relative to each other.

In the embodiment shown in FIGS. 1 through 6, within the range ofmovement of the lower mount 30 and the upper mount 32, the two areinfinitely positionable with respect to each other. In the embodiment ofFIG. 9, the upper mount is movable relative to the lower mount, butpositionable in a plurality of discrete configurations. For example, theupper mount includes a plurality of pegs and the lower mount includes aplurality of openings. Different effective heights of the upstandportion can be achieved by placing the pegs in different combinations ofopenings in the lower mount. In the embodiment shown, there are threedistinct positions that can be achieved through the three different setsof openings. Of course, in other embodiments, fewer or greater differentcombinations of positions is contemplated.

In still other embodiments, such as the embodiment of FIG. 8, thefeatures of the upper mount and the lower mount can be unitized into asingle upstand portion. In such a configuration, the base and thecontainer retaining assembly remain in a relatively constant separation,and adjustment is very limited.

The foregoing description merely explains and illustrates the inventionand the invention is not limited thereto except insofar as the appendedclaims are so limited, as those skilled in the art who have thedisclosure before them will be able to make modifications withoutdeparting from the scope of the invention.

What is claimed is:
 1. A container retaining system for a fillercomprising: an upstand portion extending in a generally upward directionfrom a surface upon which containers are positioned for filling; acontainer retaining assembly coupled to the upstand portion, thecontainer retaining assembly including: an upper plate having an uppersurface, a lower surface and a rear edge; a lower plate having an uppersurface, a lower surface and an outer portion, the lower plate beingpositioned below the upper plate and rotatably coupled therewith, theouter portion extending outwardly sufficient so as to be capable ofinterfacing with a filler valve of a filler; a suspension assemblyextends between the upstand portion of the upper plate, the suspensionassembly including a biasing member configured to bias the lower platetoward the upper plate, whereupon a downward force on the lower platesufficient to overcome the biasing member directs the lower plate torotate about the upper plate proximate a rear edge of the upper plate;and the container retaining assembly including a stopper associated withthe lower plate to define the end of rotation of the lower platerelative to the upper plate.
 2. The container retaining system for afiller of claim 1 wherein the upstand portion further includes aproximal end and a distal end, with the suspension assembly coupled tothe distal end thereof.
 3. The container retaining system for a fillerof claim 1 wherein the upstand portion includes a lower mount and anupper mount, with the lower mount positionable relative to the uppermount in at least a plurality of orientations so as to alter aneffective height of the upstand portion.
 4. The container retainingsystem for a filler of claim 3 further comprising an adjustment assemblyconfigured to control the slidable movement of the lower mount relativeto the upper mount, to in turn, alter the effective height of theupstand portion.
 5. The container retaining system for a filler of claim4 wherein the adjustment assembly comprises an upper mount positioned onthe upper plate and a lower mount coupled to the lower mount of theupstand portion, and, a threaded fastener extending between the uppermount and the lower mount of the adjustment assembly, wherein thethreaded fastener is configured to rotate relative to each of the uppermount and the lower mount, while being permitted to translate relativeto one of the upper mount and the lower mount.
 6. The containerretaining system for a filler of claim 1 wherein the lower plateincludes an inner portion coupled to the outer portion, wherein theinner portion and the outer portion are obliquely positioned relative toeach other, with the outer portion extending upwardly from the innerportion.
 7. The container retaining system for a filler of claim 1wherein the stopper comprises a post extending from one of the lowerplate and the upper plate and extending through an opening in the otherof the lower plate and the upper plate, and a fastener positioned on thepost opposite the one of the lower plate and the upper plate having theopening, wherein the fastener has a size larger than the correspondingopening on the upper plate, so as to preclude passage therethrough. 8.The container retaining system for a filler of claim 1 wherein thestopper comprises a post extending from the lower plate through acorresponding opening on the upper plate, and a fastener positioned onthe post opposite the upper plate, wherein the fastener has a sizelarger than the corresponding opening on the upper plate, so as topreclude passage therethrough.
 9. The container retaining system for afiller of claim 1 wherein the suspension assembly comprises at least onestrut assembly, the at least one strut assembly comprising a strut towercoupled at a first end to the upstand portion and extending through astrut opening disposed on the lower plate so as to be coupled at asecond end to the upper plate, and the biasing member comprises a springextending around the strut tower exerting a biasing force between theupstand portion and the lower plate, thereby directing the lower plateaway from the upstand portion and toward the upper plate.
 10. Thecontainer retaining system for a filler of claim 9 wherein the at leastone strut assembly comprises a first strut assembly and a second strutassembly, the second strut assembly being spaced apart from the firststrut assembly.
 11. The container retaining system for a filler of claim1 wherein the lower plate includes a container grasping surfacepositioned on the outer portion thereof.
 12. The container retainingsystem for a filler of claim 1 wherein the force required on the outerportion of the lower plate to overcome the biasing force is less thanthe force required to open a filler valve of a filler with which thecontainer retaining system is utilized.
 13. The container retainingsystem for a filler of claim 1 wherein the force required to open afiller valve is less than the force exerted by the biasing force incombination with a strength of a container associated with the containerretaining system.
 14. The container retaining system for a filler ofclaim 1 wherein the upper plate has a lower surface which issubstantially planar, and the portion of the upper surface of the lowerplate contacting the lower surface of the upper plate beingsubstantially planar, whereupon the lower surface of the upper plate ispositioned in abutment with the upper surface of the lower plate, withthe biasing member biasing the two into contact.